McCartney W T, Comiskey D P, Mac Donald B, Garvan C B
Marie Louise Veterinary Hospital, 38 Warrenhouse Road, Baldoyle, Dublin 13, Republic of Ireland.
Vet Comp Orthop Traumatol. 2007;20(4):285-90.
Fourteen Spaniels that presented with an intercondylar fracture of the distal humerus were managed using a lateral plate and an additional pin in twelve cases. Fixation of the fracture was achieved using a plate applied laterally which incorporated the transcondylar lag screw in the most distal hole. Of the 14 cases, two had poor results, one of which was a bilateral case, whilst the remaining 12 cases had good or very good results with only occasional stiffness or lameness. Finite element (FE) modelling of a distal humerus was generated, and loading of fracture repairs using a lateral plate and caudal plate was completed in a comparative study to determine which fixation method resisted micro-motion most effectively. Finite element analysis revealed that the lateral plate fixation provided significantly more resistance to micro movement at the fracture site that the caudal plate fixation, with 40% more micro-motion in the latter.
14只患有肱骨远端髁间骨折的西班牙猎犬接受了治疗，其中12例使用外侧钢板及额外的钢针进行处理。骨折固定通过外侧放置的钢板完成，该钢板最远端的孔内置入了经髁拉力螺钉。14例病例中，2例效果不佳，其中1例为双侧病例，其余12例效果良好或非常好，仅偶尔出现僵硬或跛行。建立了肱骨远端的有限元（FE）模型，并在一项对比研究中完成了使用外侧钢板和尾侧钢板对骨折修复部位的加载，以确定哪种固定方法能最有效地抵抗微动。有限元分析显示，与尾侧钢板固定相比，外侧钢板固定在骨折部位对微动的抵抗明显更强，后者的微动多40%。
